/* ============================================
   VARIABLES & RESET
============================================ */
:root {
    --primary-color: #0891b2;
    --primary-dark: #0e7490;
    --primary-light: #06b6d4;
    --primary-pale: #cffafe;
    --secondary-color: #1e293b;
    --accent-color: #f59e0b;
    --text-primary: #1e293b;
    --text-secondary: #475569;
    --text-light: #64748b;
    --bg-primary: #ffffff;
    --bg-secondary: #f0f9ff;
    --bg-tertiary: #e0f2fe;
    --border-color: #cbd5e1;
    --success-color: #10b981;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    --border-radius: 16px;
    --border-radius-lg: 24px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-fast);
}

ul {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ============================================
   NAVIGATION
============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--secondary-color);
    letter-spacing: -0.5px;
}

.logo span {
    color: var(--primary-color);
}

.nav-links {
    display: flex;
    gap: 35px;
}

.nav-links a {
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    padding: 5px 0;
    font-size: 0.95rem;
}

.nav-links a:hover {
    color: var(--primary-color);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition-normal);
}

.nav-links a:hover::after {
    width: 100%;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 5px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--secondary-color);
    border-radius: 3px;
    transition: var(--transition-fast);
}

/* ============================================
   HERO SECTION
============================================ */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 100px 20px 50px;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 50%, #f0fdfa 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 80%;
    height: 150%;
    background: radial-gradient(circle, rgba(8, 145, 178, 0.08) 0%, transparent 70%);
    animation: float 20s ease-in-out infinite;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 60%;
    height: 100%;
    background: radial-gradient(circle, rgba(6, 182, 212, 0.06) 0%, transparent 70%);
    animation: float 15s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(30px, -30px); }
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    width: 100%;
}

.hero-text {
    position: relative;
    z-index: 1;
}

.greeting {
    font-size: 1.1rem;
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 12px;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.hero-text h1 {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--secondary-color);
    line-height: 1.1;
    margin-bottom: 15px;
    letter-spacing: -1px;
}

.typing-text {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--primary-dark);
    margin-bottom: 25px;
    min-height: 35px;
}

.hero-description {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 35px;
    max-width: 520px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 15px;
    margin-bottom: 40px;
}

.btn {
    padding: 16px 36px;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition-normal);
    display: inline-flex;
    align-items: center;
    gap: 10px;
    border: none;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
    box-shadow: 0 4px 14px rgba(8, 145, 178, 0.3);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(8, 145, 178, 0.4);
}

.btn-secondary {
    background: white;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: white;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 1.2rem;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
    border: 2px solid var(--border-color);
}

.social-icon:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.hero-image {
    position: relative;
    z-index: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.image-wrapper {
    position: relative;
    width: 420px;
    height: 420px;
}

/* Profile Image - Circular with gradient border */
.profile-image {
    width: 350px;
    height: 350px;
    border-radius: 50%;
    object-fit: cover;
    border: 6px solid white;
    box-shadow: var(--shadow-xl);
    position: relative;
    z-index: 2;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-dark) 100%);
}

.profile-placeholder {
    width: 350px;
    height: 350px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-dark) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-xl);
    position: relative;
    z-index: 2;
    border: 6px solid white;
}

.profile-placeholder i {
    font-size: 8rem;
    color: white;
    opacity: 0.9;
}

.floating-card {
    position: absolute;
    background: white;
    padding: 18px 28px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--secondary-color);
    animation: floatCard 4s ease-in-out infinite;
    border: 1px solid var(--border-color);
}

.floating-card i {
    color: var(--primary-color);
    font-size: 1.4rem;
}

.card-1 {
    top: 30px;
    right: -30px;
    animation-delay: 0s;
}

.card-2 {
    bottom: 80px;
    left: -40px;
    animation-delay: 1s;
}

.card-3 {
    bottom: 30px;
    right: 20px;
    animation-delay: 2s;
}

@keyframes floatCard {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
}

.scroll-indicator a {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-light);
    font-size: 0.85rem;
    animation: bounce 2s ease-in-out infinite;
}

.scroll-indicator i {
    font-size: 1.3rem;
    color: var(--primary-color);
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(10px); }
}

/* ============================================
   SECTION STYLES
============================================ */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 15px;
    letter-spacing: -0.5px;
}

.underline {
    width: 70px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
    margin: 0 auto;
    border-radius: 2px;
}

/* ============================================
   ABOUT SECTION
============================================ */
.about {
    padding: 120px 0;
    background: var(--bg-primary);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
}

.about-text h3 {
    font-size: 1.6rem;
    color: var(--secondary-color);
    margin-bottom: 25px;
    font-weight: 700;
}

.about-text p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.85;
    font-size: 1.05rem;
}

.about-stats {
    display: flex;
    gap: 40px;
    margin-top: 35px;
    padding-top: 35px;
    border-top: 1px solid var(--border-color);
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--primary-color);
    line-height: 1;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: 5px;
    display: block;
}

.about-highlights {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 25px;
}

.highlight-card {
    background: var(--bg-secondary);
    padding: 35px;
    border-radius: var(--border-radius);
    transition: var(--transition-normal);
    border: 1px solid var(--border-color);
}

.highlight-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.highlight-card i {
    font-size: 2.2rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.highlight-card h4 {
    font-size: 1.15rem;
    color: var(--secondary-color);
    margin-bottom: 12px;
    font-weight: 600;
}

.highlight-card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ============================================
   EXPERIENCE SECTION
============================================ */
.experience {
    padding: 120px 0;
    background: var(--bg-secondary);
}

.timeline {
    position: relative;
    max-width: 850px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(to bottom, var(--primary-light), var(--primary-dark));
    border-radius: 2px;
}

.timeline-item {
    position: relative;
    margin-bottom: 45px;
    width: 50%;
}

.timeline-item:nth-child(odd) {
    left: 0;
    padding-right: 45px;
}

.timeline-item:nth-child(even) {
    left: 50%;
    padding-left: 45px;
}

.timeline-item::before {
    content: '';
    position: absolute;
    top: 30px;
    width: 18px;
    height: 18px;
    background: var(--primary-color);
    border-radius: 50%;
    border: 4px solid white;
    box-shadow: var(--shadow-md);
    z-index: 1;
}

.timeline-item:nth-child(odd)::before {
    right: -9px;
}

.timeline-item:nth-child(even)::before {
    left: -9px;
}

.timeline-content {
    background: white;
    padding: 35px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
    border: 1px solid var(--border-color);
}

.timeline-content:hover {
    box-shadow: var(--shadow-xl);
    transform: translateY(-3px);
    border-color: var(--primary-light);
}

.timeline-header {
    margin-bottom: 18px;
}

.job-title {
    font-size: 1.35rem;
    color: var(--secondary-color);
    margin-bottom: 6px;
    font-weight: 700;
}

.company {
    font-weight: 600;
    color: var(--primary-color);
}

.job-location, .job-date {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 6px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.job-responsibilities {
    margin: 22px 0;
}

.job-responsibilities li {
    position: relative;
    padding-left: 22px;
    margin-bottom: 12px;
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

.job-responsibilities li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 7px;
    height: 7px;
    background: var(--primary-color);
    border-radius: 50%;
}

.job-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.job-tags span {
    padding: 7px 16px;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border-radius: 25px;
    font-size: 0.8rem;
    font-weight: 500;
    transition: var(--transition-fast);
}

.job-tags span:hover {
    background: var(--primary-color);
    color: white;
}

/* ============================================
   SKILLS SECTION
============================================ */
.skills {
    padding: 120px 0;
    background: var(--bg-primary);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.skill-category {
    background: var(--bg-secondary);
    padding: 40px;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    transition: var(--transition-normal);
}

.skill-category:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-lg);
}

.skill-icon {
    width: 65px;
    height: 65px;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-dark) 100%);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 28px;
}

.skill-icon i {
    font-size: 1.6rem;
    color: white;
}

.skill-category h3 {
    font-size: 1.25rem;
    color: var(--secondary-color);
    margin-bottom: 28px;
    font-weight: 600;
}

.skill-item {
    margin-bottom: 22px;
}

.skill-item:last-child {
    margin-bottom: 0;
}

.skill-name {
    display: block;
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 10px;
}

.skill-bar {
    height: 10px;
    background: var(--bg-tertiary);
    border-radius: 5px;
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-light) 0%, var(--primary-dark) 100%);
    border-radius: 5px;
    transition: width 1s ease;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.skill-tags .tag {
    padding: 8px 18px;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border-radius: 25px;
    font-size: 0.85rem;
    font-weight: 500;
    transition: var(--transition-fast);
}

.skill-tags .tag:hover {
    background: var(--primary-color);
    color: white;
}

/* ============================================
   EDUCATION SECTION
============================================ */
.education {
    padding: 120px 0;
    background: var(--bg-secondary);
}

.education-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-bottom: 60px;
}

.education-card {
    background: white;
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    display: flex;
    gap: 28px;
    transition: var(--transition-normal);
    border: 1px solid var(--border-color);
}

.education-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.edu-icon {
    width: 75px;
    height: 75px;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-dark) 100%);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.edu-icon i {
    font-size: 1.9rem;
    color: white;
}

.edu-content h3 {
    font-size: 1.25rem;
    color: var(--secondary-color);
    margin-bottom: 10px;
    font-weight: 700;
}

.edu-specialization {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 10px;
    display: block;
}

.edu-institution {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 12px;
    display: block;
}

.edu-date {
    color: var(--text-light);
    font-size: 0.85rem;
}

/* Languages Section */
.languages-section {
    text-align: center;
    padding-top: 50px;
    border-top: 1px solid var(--border-color);
}

.languages-section h3 {
    font-size: 1.5rem;
    color: var(--secondary-color);
    margin-bottom: 35px;
    font-weight: 700;
}

.languages-grid {
    display: flex;
    justify-content: center;
    gap: 50px;
    flex-wrap: wrap;
}

.language-item {
    text-align: center;
    padding: 25px 40px;
    background: white;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    transition: var(--transition-normal);
}

.language-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.lang-name {
    display: block;
    font-weight: 700;
    color: var(--secondary-color);
    font-size: 1.1rem;
    margin-bottom: 6px;
}

.lang-level {
    font-size: 0.95rem;
    color: var(--primary-color);
    font-weight: 500;
}

/* ============================================
   CERTIFICATES SECTION
============================================ */
.certificates {
    padding: 120px 0;
    background: var(--bg-primary);
}

.certificates-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.certificate-card {
    background: var(--bg-secondary);
    padding: 35px;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    display: flex;
    gap: 22px;
    transition: var(--transition-normal);
}

.certificate-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.cert-icon {
    width: 65px;
    height: 65px;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-dark) 100%);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.cert-icon i {
    font-size: 1.6rem;
    color: white;
}

.cert-content h3 {
    font-size: 1.15rem;
    color: var(--secondary-color);
    margin-bottom: 10px;
    font-weight: 600;
}

.cert-issuer {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 6px;
    display: block;
}

.cert-date {
    color: var(--text-light);
    font-size: 0.85rem;
    margin-bottom: 12px;
    display: block;
}

.cert-description {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* ============================================
   PROJECTS SECTION
============================================ */
.projects {
    padding: 120px 0;
    background: var(--bg-secondary);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.project-card {
    background: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    transition: var(--transition-normal);
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.project-image {
    height: 200px;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-dark) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.project-image i {
    font-size: 3.5rem;
    color: white;
    opacity: 0.9;
}

.project-content {
    padding: 35px;
}

.project-content h3 {
    font-size: 1.25rem;
    color: var(--secondary-color);
    margin-bottom: 12px;
    font-weight: 600;
}

.project-category {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 18px;
    display: inline-block;
    padding: 5px 14px;
    background: var(--bg-tertiary);
    border-radius: 20px;
}

.project-description {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.75;
    margin-bottom: 22px;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.project-tags span {
    padding: 6px 16px;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    transition: var(--transition-fast);
}

.project-tags span:hover {
    background: var(--primary-color);
    color: white;
}

/* ============================================
   CONTACT SECTION
============================================ */
.contact {
    padding: 120px 0;
    background: var(--bg-primary);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info h3 {
    font-size: 1.8rem;
    color: var(--secondary-color);
    margin-bottom: 22px;
    font-weight: 700;
}

.contact-info > p {
    color: var(--text-secondary);
    margin-bottom: 35px;
    line-height: 1.85;
    font-size: 1.05rem;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 22px;
    margin-bottom: 35px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 18px;
}

.contact-item i {
    width: 55px;
    height: 55px;
    background: var(--bg-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 1.3rem;
    border: 2px solid var(--border-color);
}

.contact-item .label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-light);
    margin-bottom: 3px;
}

.contact-item a,
.contact-item span:last-child {
    color: var(--text-primary);
    font-weight: 600;
    font-size: 1rem;
}

.contact-item a:hover {
    color: var(--primary-color);
}

.social-media {
    display: flex;
    gap: 15px;
}

.social-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 28px;
    background: var(--primary-color);
    color: white;
    border-radius: var(--border-radius);
    font-weight: 600;
    transition: var(--transition-normal);
    border: 2px solid var(--primary-color);
}

.social-link:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.contact-form-wrapper {
    background: var(--bg-secondary);
    padding: 45px;
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 22px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 18px 24px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition-fast);
    background: white;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(8, 145, 178, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 140px;
}

.submit-btn {
    width: 100%;
    justify-content: center;
    padding: 18px 32px;
    font-size: 1rem;
}

/* ============================================
   FOOTER
============================================ */
.footer {
    background: var(--secondary-color);
    padding: 50px 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-logo span {
    font-size: 1.4rem;
    font-weight: 700;
    color: white;
    letter-spacing: -0.5px;
}

.footer-social {
    display: flex;
    gap: 15px;
}

.footer-social a {
    width: 45px;
    height: 45px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    transition: var(--transition-normal);
    border: 2px solid rgba(255, 255, 255, 0.1);
}

.footer-social a:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    transform: translateY(-3px);
}

.footer-text p {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* ============================================
   RESPONSIVE DESIGN
============================================ */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 50px;
    }

    .hero-text {
        order: 1;
    }

    .hero-image {
        order: 0;
        margin-bottom: 20px;
    }

    .hero-description {
        margin: 0 auto 35px;
    }

    .hero-buttons {
        justify-content: center;
    }

    .social-links {
        justify-content: center;
    }

    .image-wrapper {
        width: 320px;
        height: 320px;
    }

    .profile-image,
    .profile-placeholder {
        width: 280px;
        height: 280px;
    }

    .profile-placeholder i {
        font-size: 6rem;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 50px;
    }

    .skills-grid {
        grid-template-columns: 1fr;
    }

    .contact-content {
        grid-template-columns: 1fr;
    }

    .education-grid {
        grid-template-columns: 1fr;
    }

    .certificates-grid {
        grid-template-columns: 1fr;
    }

    .projects-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 25px;
        gap: 18px;
        box-shadow: var(--shadow-lg);
        transform: translateY(-150%);
        transition: var(--transition-normal);
    }

    .nav-links.active {
        transform: translateY(0);
    }

    .hamburger {
        display: flex;
    }

    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }

    .hero-text h1 {
        font-size: 2.5rem;
    }

    .typing-text {
        font-size: 1.15rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .about-highlights {
        grid-template-columns: 1fr;
    }

    .timeline::before {
        left: 20px;
    }

    .timeline-item {
        width: 100%;
        left: 0 !important;
        padding-left: 50px !important;
        padding-right: 0 !important;
    }

    .timeline-item::before {
        left: 12px !important;
        right: auto !important;
    }

    .about-stats {
        flex-wrap: wrap;
        justify-content: center;
        gap: 25px;
    }

    .education-card {
        flex-direction: column;
        text-align: center;
    }

    .edu-icon {
        margin: 0 auto;
    }

    .footer-content {
        flex-direction: column;
        gap: 25px;
        text-align: center;
    }

    .floating-card {
        display: none;
    }

    .image-wrapper {
        width: 280px;
        height: 280px;
    }

    .profile-image,
    .profile-placeholder {
        width: 230px;
        height: 230px;
    }

    .profile-placeholder i {
        font-size: 5rem;
    }

    .languages-grid {
        gap: 20px;
    }

    .language-item {
        padding: 20px 30px;
    }
}

@media (max-width: 480px) {
    .hero-text h1 {
        font-size: 2rem;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    .about-stats {
        gap: 20px;
    }

    .stat-number {
        font-size: 2.2rem;
    }

    .contact-form-wrapper {
        padding: 25px;
    }

    .certificates-grid,
    .projects-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   ANIMATION UTILITIES
============================================ */
[data-aos] {
    opacity: 0;
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-aos="fade-up"] {
    transform: translateY(30px);
}

[data-aos="fade-down"] {
    transform: translateY(-30px);
}

[data-aos="fade-right"] {
    transform: translateX(-30px);
}

[data-aos="fade-left"] {
    transform: translateX(30px);
}

[data-aos].aos-animate {
    opacity: 1;
    transform: translateY(0) translateX(0);
}